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Schmitt S, Nuhn L, Barz M, Butt HJ, Koynov K. Shining Light on Polymeric Drug Nanocarriers with Fluorescence Correlation Spectroscopy. Macromol Rapid Commun 2022; 43:e2100892. [PMID: 35174569 DOI: 10.1002/marc.202100892] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/04/2022] [Indexed: 11/07/2022]
Abstract
The use of nanoparticles as carriers is an extremely promising way for administration of therapeutic agents, such as drug molecules, proteins and nucleic acids. Such nanocarriers (NCs) can increase the solubility of hydrophobic compounds, protect their cargo from the environment, and if properly functionalized, deliver it to specific target cells and tissues. Polymer-based NCs are especially promising, because they offer high degree of versatility and tunability. However, in order to get a full advantage of this therapeutic approach and develop efficient delivery systems, a careful characterization of the NCs is needed. This Feature Article highlights the fluorescence correlation spectroscopy (FCS) technique as a powerful and versatile tool for NCs characterization at all stages of the drug delivery process. In particular, FCS can monitor and quantify the size of the NCs and the drug loading efficiency after preparation, the NCs stability and possible interactions with, e.g., plasma proteins in the blood stream and the kinetic of drug release in the cytoplasm of the target cells. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Sascha Schmitt
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz, 55128, Germany
| | - Lutz Nuhn
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz, 55128, Germany
| | - Matthias Barz
- Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Hans-Jürgen Butt
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz, 55128, Germany
| | - Kaloian Koynov
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz, 55128, Germany
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Weyermann J, Lochmann D, Georgens C, Rais I, Kreuter J, Karas M, Wolkenhauer M, Zimmer A. Physicochemical characterisation of cationic polybutylcyanoacrylat-nanoparticles by fluorescence correlation spectroscopy. Eur J Pharm Biopharm 2004; 58:25-35. [PMID: 15207534 DOI: 10.1016/j.ejpb.2004.02.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2003] [Revised: 02/02/2004] [Accepted: 02/02/2004] [Indexed: 11/22/2022]
Abstract
The aim of this study was to compare different physical and chemical methods with fluorescence correlation spectroscopy (FCS) in order to characterise cationic acrylate nanoparticles (NP), which can deliver oligonucleotides (ON) into mammalian cells. These positively charged nanoparticles were prepared from diethylaminoethyl dextran (DEAE-dextran) and poly(n-butyl-2-cyanoacrylate) (PBCA). NP consists of PBCA oligochains with an average size of PBCA 9 mer and were formed by entrapping DEAE-dextran and dextran 70,000 in high amounts into the particle matrix. The oligochain length of PBCA was investigated by mass-spectroscopy (MALDI TOF). The molecular weight of a particle with d = 108 nm was estimated to be approximately 3.6 x 10(8) Da. The mean size of the nanoparticles were in a range of dh = 130-140 nm, as determined independently by FCS and dynamic light scattering. Atomic force microscopy and scanning electron microscopy images confirm this size range. Furthermore, the particle mass of the PBCA-NP was estimated by FCS measurements. For this approach two new methods for fluorescence labelling of cationic particles were developed. Fluorescent labelled dextran 70,000 was entrapped into the particle matrix; in addition, the derivatisation of hydroxyl groups of the NP was achieved with 5-([4,6-dichlorotriazin-2-yl]amino) fluorescein (DTAF). ON can be localised in a complex with the NP by dual-colour fluorescence cross correlation spectroscopy measurements. The zetapotential of the unloaded NP was positively charged with about +39 mV and decreased down to -40 mV on addition of excess ON. After centrifugation quantification of the ON loading onto the particles by strong anion exchange high performance liquid chromatography (SAX HPLC) and FCS showed that approximately 20 microg ON per 100 g NP was adsorbed. The FCS measurements of the ON adsorption in situ was found to be much higher with approximately 95 microg ON per 100 g NP.
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Affiliation(s)
- Jörg Weyermann
- Institute for Pharmaceutical Technology, Johann Wolfgang Goethe-University, Frankfurt am Main, Germany
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Gosse C, Boutorine A, Aujard I, Chami M, Kononov A, Cogné-Laage E, Allemand JF, Li J, Jullien L. Micelles of Lipid−Oligonucleotide Conjugates: Implications for Membrane Anchoring and Base Pairing. J Phys Chem B 2004; 108:6485-97. [DOI: 10.1021/jp031188m] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- C. Gosse
- Laboratoire de Physique Statistique CNRS UMR 8550, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Département de Chimie CNRS UMR 8640, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Laboratoire de Biophysique CNRS/MNHN UMR 5153, Muséum National d'Histoire Naturelle, 43 rue Cuvier, F-75231 Paris Cedex 05, France, and Laboratoire de Physico-Chimie CNRS UMR 168, Institut Curie, 26, rue d'Ulm, 75248 Paris Cedex 05, France
| | - A. Boutorine
- Laboratoire de Physique Statistique CNRS UMR 8550, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Département de Chimie CNRS UMR 8640, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Laboratoire de Biophysique CNRS/MNHN UMR 5153, Muséum National d'Histoire Naturelle, 43 rue Cuvier, F-75231 Paris Cedex 05, France, and Laboratoire de Physico-Chimie CNRS UMR 168, Institut Curie, 26, rue d'Ulm, 75248 Paris Cedex 05, France
| | - I. Aujard
- Laboratoire de Physique Statistique CNRS UMR 8550, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Département de Chimie CNRS UMR 8640, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Laboratoire de Biophysique CNRS/MNHN UMR 5153, Muséum National d'Histoire Naturelle, 43 rue Cuvier, F-75231 Paris Cedex 05, France, and Laboratoire de Physico-Chimie CNRS UMR 168, Institut Curie, 26, rue d'Ulm, 75248 Paris Cedex 05, France
| | - M. Chami
- Laboratoire de Physique Statistique CNRS UMR 8550, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Département de Chimie CNRS UMR 8640, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Laboratoire de Biophysique CNRS/MNHN UMR 5153, Muséum National d'Histoire Naturelle, 43 rue Cuvier, F-75231 Paris Cedex 05, France, and Laboratoire de Physico-Chimie CNRS UMR 168, Institut Curie, 26, rue d'Ulm, 75248 Paris Cedex 05, France
| | - A. Kononov
- Laboratoire de Physique Statistique CNRS UMR 8550, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Département de Chimie CNRS UMR 8640, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Laboratoire de Biophysique CNRS/MNHN UMR 5153, Muséum National d'Histoire Naturelle, 43 rue Cuvier, F-75231 Paris Cedex 05, France, and Laboratoire de Physico-Chimie CNRS UMR 168, Institut Curie, 26, rue d'Ulm, 75248 Paris Cedex 05, France
| | - E. Cogné-Laage
- Laboratoire de Physique Statistique CNRS UMR 8550, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Département de Chimie CNRS UMR 8640, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Laboratoire de Biophysique CNRS/MNHN UMR 5153, Muséum National d'Histoire Naturelle, 43 rue Cuvier, F-75231 Paris Cedex 05, France, and Laboratoire de Physico-Chimie CNRS UMR 168, Institut Curie, 26, rue d'Ulm, 75248 Paris Cedex 05, France
| | - J.-F. Allemand
- Laboratoire de Physique Statistique CNRS UMR 8550, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Département de Chimie CNRS UMR 8640, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Laboratoire de Biophysique CNRS/MNHN UMR 5153, Muséum National d'Histoire Naturelle, 43 rue Cuvier, F-75231 Paris Cedex 05, France, and Laboratoire de Physico-Chimie CNRS UMR 168, Institut Curie, 26, rue d'Ulm, 75248 Paris Cedex 05, France
| | - J. Li
- Laboratoire de Physique Statistique CNRS UMR 8550, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Département de Chimie CNRS UMR 8640, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Laboratoire de Biophysique CNRS/MNHN UMR 5153, Muséum National d'Histoire Naturelle, 43 rue Cuvier, F-75231 Paris Cedex 05, France, and Laboratoire de Physico-Chimie CNRS UMR 168, Institut Curie, 26, rue d'Ulm, 75248 Paris Cedex 05, France
| | - L. Jullien
- Laboratoire de Physique Statistique CNRS UMR 8550, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Département de Chimie CNRS UMR 8640, Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France, Laboratoire de Biophysique CNRS/MNHN UMR 5153, Muséum National d'Histoire Naturelle, 43 rue Cuvier, F-75231 Paris Cedex 05, France, and Laboratoire de Physico-Chimie CNRS UMR 168, Institut Curie, 26, rue d'Ulm, 75248 Paris Cedex 05, France
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